Added observer to update values displayed based on some metric.

* Modified main() function to connect signals/slots to display
  calculated values
* Color scales are no longer shared; they are also normalized to
  each component's own data
* Stub mouse handling in BarChart (changes cursor shape)

1 files changed, 2 insertions, 2 deletions

diff --git a/scatterplot.h b/scatterplot.h
index 3c2d50b..d17341e 100644
--- a/scatterplot.h
+++ b/scatterplot.h
@@ -17,7 +17,7 @@ public:
     Scatterplot(QQuickItem *parent = 0);
 
     arma::mat XY() const;
-    void setColorScale(const ColorScale *colorScale);
+    void setColorScale(const ColorScale &colorScale);
     void setXY(const arma::mat &xy, bool updateView);
     void setColorData(const arma::vec &colorData, bool updateView);
     void setOpacityData(const arma::vec &opacityData, bool updateView);
@@ -67,7 +67,7 @@ private:
 
     // Visuals
     float m_glyphSize;
-    const ColorScale *m_colorScale;
+    ColorScale m_colorScale;
 
     void autoScale();
     bool m_autoScale;